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The Diocese of Eastern Pennsylvania is a diocese of the Orthodox Church in America (OCA).^[1] Its territory includes parishes, monasteries, and missions located in two states in the United States – Delaware and Pennsylvania. The diocesan chancery is located in South Canaan Township, Pennsylvania.

• Adam (Filippovskiy) (1935-1944)
• Nikon (de Greve) (September 19, 1947 - May 7, 1952)
• Demetrius (Magan) (c. 1953-1964)
• Cyprian (Borisevich) (1964 - 14 December 1980)
• Herman (Swaiko) (March 17, 1981 - July 22, 2002)
• Tikhon (Mollard) (February 14, 2004 - November 13, 2012)
• Melchisedek (Pleska) (13 November 2012 - 18 March 2014) locum tenens
• Mark (Maymon) (since March 18, 2014)

The diocese is grouped geographically into three deaneries, each consisting of a number of parishes. Each deanery is headed by a parish priest, known as a dean. The deans coordinate activities in their area's parishes, and report to the diocesan bishop. The current deaneries of the Diocese of Eastern Pennsylvania are:

• Frackville Deanery – Pennsylvania
• Philadelphia Deanery – Delaware and Pennsylvania
• Wilkes-Barre Deanery – Pennsylvania

The diocese has several active departments, including

• the Missions department
• the Office of Church School Education and Curriculum
• the Office of Young Adult Activities
• the Liturgical Life Committee, and the Office of Vocations.

A Diocesan Revitalization committee has also been created for the purpose of revitalizing all parishes within the diocese, to foster spiritual growth and address the various challenges facing the Diocese today.

• Official site
• Official Diocesan Youth Department site
• Official Diocesan Summer Camp site